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What type of coils are used for winding the single phase induction motor generally?
d Explanation: The slots house the starting and running windings. The single phase induction motors are generally wound with concentric coils
d
See lessExplanation: The slots house the starting and running windings. The single phase
induction motors are generally wound with concentric coils
What is the lamination used for the stator?
c Explanation: The stator is made up of a block of laminations. The block of laminations are made up of cast iron or die cast aluminium alloy frame
c
See lessExplanation: The stator is made up of a block of laminations. The block of laminations
are made up of cast iron or die cast aluminium alloy frame
How many steps are involved in the construction of single phase induction motor?
c Explanation: There are 5 steps in the construction of the single phase induction motor. They are stator, stator windings, rotor, starting switches, electrolytic capacitor
c
See lessExplanation: There are 5 steps in the construction of the single phase induction motor.
They are stator, stator windings, rotor, starting switches, electrolytic capacitor
What is the range of the starting torque of shaded pole induction motor?
c Explanation: The range of starting torque in the capacitor induction motor is 2-3.5 and that of the repulsion start induction motor is 2-4. The range of the starting torque of the shaded pole induction motor is 0.2-0.3
c
See lessExplanation: The range of starting torque in the capacitor induction motor is 2-3.5 and
that of the repulsion start induction motor is 2-4. The range of the starting torque of the
shaded pole induction motor is 0.2-0.3
What is the range of the starting current of capacitor type induction motor?
b Explanation: The range of starting current is 5-7 for resistor type induction motor and that of the repulsion start motor is 2-3. The range of the starting current of capacitor induction motor is 4-6.
b
See lessExplanation: The range of starting current is 5-7 for resistor type induction motor and
that of the repulsion start motor is 2-3. The range of the starting current of capacitor
induction motor is 4-6.
What is the range of output watt for the shaded pole induction machine?
a Explanation: The range of output watt for capacitor type induction motor is 90-750 and that of the repulsion start motor is 90-3700. The range of output watt for resistor type induction motor is 7.5-370 and that of the shaded pole type is 0.37-50.
a
See lessExplanation: The range of output watt for capacitor type induction motor is 90-750 and
that of the repulsion start motor is 90-3700. The range of output watt for resistor type
induction motor is 7.5-370 and that of the shaded pole type is 0.37-50.
What happens in the repulsion motor starting method?
b Explanation: The repulsion motor starting method is one of the starting methods of single phase induction motor. The commutator windings are dominant and hence gives good starting torque
b
See lessExplanation: The repulsion motor starting method is one of the starting methods of
single phase induction motor. The commutator windings are dominant and hence gives
good starting torque
What is the specialty in the repulsion motor starting method?
c Explanation: The repulsion motor starting method is one of the methods used in the starting of the single phase induction motor. Here the cage winding is replaced by the commutator windings
c
See lessExplanation: The repulsion motor starting method is one of the methods used in the
starting of the single phase induction motor. Here the cage winding is replaced by the
commutator windings
When is the repulsion motor starting method used?
b Explanation: The repulsion motor starting method is one of the 3 methods of starting the single phase induction motor. It is used when the high starting torque is required
b
See lessExplanation: The repulsion motor starting method is one of the 3 methods of starting the
single phase induction motor. It is used when the high starting torque is required
For what type of machines is the shaded pole starting method suitable?
a Explanation: The efficiency of the shaded pole starting method is very low. The shaded pole starting method is used for outputs below 60 watts
a
See lessExplanation: The efficiency of the shaded pole starting method is very low. The shaded
pole starting method is used for outputs below 60 watts